Arm-rest.



W. J. KNOX & F. J. HARRISON.

ARM REST.

APPLICATION FILED 0cT.29. 1912.

1 1 73, 357. Patented Feb. 29, 1916.

3 SHEETS-SHEET I- WITNESSES INVENTORS THE OLIJMBIA PuNonnAPH co., WASHINGTON, D. p.

W. J. KNOX & F. J. HARRISON.

ARM REST.

APPLICATION FILED OCT. 29, 1912.

1, 173,357. Patented Feb. 29, 1916.

3 SHEETS-SHEET 2.

INVENTOR THE COLUMBIA PLAWGRAPH 50.. WASHINDTON, D. c.

W. J. KNOX & F. J. HARRISON.

ARM REST. A'PPLICATION FILED OCT- 29, 1912. 1,173,357, Patented Feb. 29, 1916.

I 3 SHEETS-SHEET 3- H 1.9

Fly 20 THE COLUMBIA PLArjccRAFH co., WASHINGTON, D. c,

appear, we attain by of the invention, Fig. line XIII-XIII of Flg. 12;

o'rn srxrns AT UFICE.

WILLIAM J. KNOX AND FREDERICK J. HARRISON, 0F DUIBOIS, PENNSYLVANIA.

ARM-REST.

To all whom it may concern:

Be it lrnown that we, WILLIAM J. Knox and FREDERICK J. HARRISON, both citizens of the United States, residing at Dubois, in the county of Glearfield and State of Pennsylvania, have invented certain new and useful Improvements in Arm-Rests, of which the following is a specification.

The invention relates to arm rests, and we have illustrated its application to a locomotive cab, although it will be readily apparent that it is equally well adapted for other uses. It has among its primary objects; the provision of an improved rest the parts of which may be readily reversed thereby increasing the life of the rest; the provision in a rest of an improved pad which may be readily renewed or reversed without necessarily handling the body of the rest; the provision in a rest of an improved renewable or reversible pad which is in a sense self-locking; and in general the provision of a simple, inexpensive and durable rest. Our invention further contemplates the provision of a rest wherein material ordinarily considered as worn out and useless may be employed. These, together with such other objects as may hereinafter means of a construction, various embodiments of which are illustrated in the accompanying drawings, wherein- Figure 1 is a side elevation of a locomotive cab showing the application of our invention to a rest of the fixed type; Fig. 2 is a section taken on the line 11-11 of Fig. 1; Fig. 3 is a View similar to Fig. 1, but illustrates a removable rest; Fig. 4 is a section on the line IV-IV of Fig. 3; Figs. 5

and 6 are an enlarged showing of a rest of the fixed type, the figures being respectively a plan and side elevation partially in section; Fig. 7 is a section taken on the line VII-VII of Fig. 6; Figs. 8 and 9 are respectively a plan and side elevation artially in section of a modified form of xed rest,-and Fig. 10 is a section taken on the line XX of Fig. 9; Figs. 11, 12, and 13 are similar views of another embodiment 13 being taken on the Fig. 14 is a I Specification of Letters Patent.

'16, 17, and 18,

Patented Feb. 29, 1916.

Application filed October 29, 1912. Serial No. 728,490.

side elevation of a modified form of rest, and illustrates the manner of application of the pad to the body of the rest; Figs. 15, illustrate various forms of rest pads in cross section; Fig. 19 is a plan. view of a slightly modified type of renewable rest, Fig. 20 illustrating an end view and side elevation of the device of Fig. 19; Fig. 21 is a plan view of a removable rest having double opposed pads, and Fig. 22 illustrates an end view and side elevation, partially in section, of the device of Fig. 21; Figs. 23 and 24 are a plan view and side elevation, partially in section, of a double opposed fixed rest and Fig. 25 is a section on the line XXV-XXV of Fig. 24.; Fig. 26 is a longitudinal section through a modified form of fixed rest; Fig. 27 is an enlarged cross section of Fig. 26; Fig. 28 is a side elevation of another form of fixed rest, and Fig. 29 is a cross section of the device of Fig. 28, drawn on an enlarged scale.

Arm rests are usually constructed along two general lines, one wherein the body portion is secured to a frame or support 0 some kind, and the other wherein the body portion removably engages the support. The body portion is usually covered with a pad in the replacing of which skilled labor is usually required. Our invention contemplates among other things, the provision of a simple and durable rest wherein the pad or cushion may be readily replaced or reversed at will, and we have shown our invention applied to both the fixed and the removable types of rests just described. Broadly stated, our invention comprises a base member of permanent character, preferably composed of wood or metal or both, and an improved form of pad various types of which will be hereinafter described. These pads are of durable character and can be renewed or reversed to present new wearing surfaces at will, without necessarily disengaging the base member, and without the use of skilled labor or special equipment.

Referring now to Figs. 1 and 2, it will be seen that we have illustrated in somewhat diagrammatic form the application of our improved rest to a locomotive cab 7 having from the top of the base and extending substantially in parallelism therewith. The

construction of the base. is clearly indicated in Figs. 5, 6, and 7. The pad for the rest is composed of one or more tubular members 13 which are preferably of rubber or other substance, or material resilient in character, of'a greater length than the distance between the ends of the opposing trunnions, the tubular members being placed in position by forcing one end over one trunnion and then by bending or springing them up in the middle so that the other end may be started on the opposing trunnion, after which the tubular member can be forced to horizontal position in which it will be securely held by both trunnions. The method of application is clearly-illustrated in Fig. 14. In the rest shown in Figs. 1, 2, 5, 6, and 7, two tubes 13 arranged beside one another are employed. The tubes are detachably fastened in position over the trunnions by means of spring cotter pins ll which and trunnion.

In Figs. 3 and 4, we have shown the same general construction applied to a removable pass through the base, tube rest, the base 9 in this case however, having forked ends 15 which engage the sides of the window framing thereby permitting the insertion and removal of the rest bodily as shown in dotted lines in Fig. 3.

In Figs. 8, 9, and 10, a slightly modified arrangement for supporting the tubes in the 'base is illustrated. In this construction the base 9'is provided with bent-back end clips 16- which are adapted to embrace the ends of the tubes 13, removable bolts 17 extending through the clips, tubes, and base, as a fastening for the tubes.

The rest shown in Figs. 11, 12, and 13 is of the same general fixed type as that illustrated in Figs. 5 and 6, the tubes 13 however being oval in cross section and having stiflening bridge walls 18 located adjacent each end. The trunnions correspond in cross section to the tubes.

Fig. '14, as previously stated, illustrates the manner of inserting the tubes in the base,

and Figs. 15 to 18 inclusive illustrate in cross section different types of tubes that may be employed. If desired, the tubes may be stiffened by inserting any suitable mate rial, such for example as the central tubing 19 shown in Fig. 18.

In Figs. 19 and 20 a modified form of removable rest is shown. In this construction into the tubes.

,padhaving a bead 28 use of skilled labor.

whichthe invention Having thus described our invention and the tubes are secured by means of clips 20 which are fastened to the base, and by the bolts 21. Adjacent the central portion of the base is secured a plate 22 which has upstanding l-ugs 23 projecting into recesses cut These lugs prevent the tubes from spreading apart. The .base has forked ends for engaging thewindow frame."

rest having four tubes opposed in pairs is shown in Figs. 21 and 22. This rest is of the removable type and its base has three brackets 24 one of which is secured to the base at the central-portion thereof, and the other two at the ends. Theend brackets have inwardly projecting central bracket has opposing trunnions projecting in opposite directions., As before trunnions andfthe described, the tubes are detachably locked in position by cotter pins.

The rest illustrated in Figs. 23, 24, an d 25 is of the same general arrangement as. the rest just described, but is ofthe fixed type and has the brackets and holdingtrunnions integral with the base, 1

In Figures 26 and 27 a base of the fixed type is shown, said base having an inwardly turned clencher rim 25 adapted to engagefla lip 26 formed on the edges ofa resilient pad 27, the lip 26 telescoping past the inner edge of the clencher rim. The same general construction is shown in Figs. 28 and 29, the which is engaged by grooves 29 formed on the base. The pad slid in from one end. M

It will be apparent from the foregoing that the pads can be readily reversed. to present new wearing surfaces, or entirelyreplaced, with but little labor and without the The constructionis durable and can be readily cleaned, and is :therefore of particular service in railroad work because of the accumulation of grease,

Cinders, and grit, which necessitates frequent renewals in other types of rests. other advantage incident to the construction 1s that it enables the use of odd' lengths of hose and wornout air brake hose which are t s also, o be no edunfit for further use.

that the locking members may be dispensed with, as it will be clear that the rubber tubing or hose, especially if it be somewhat stifi" in character, is in a measure self-locking and will remain in position under ordinary circumstances. These, together with such other advantages as are incident to the invention, will be readily apparent to those skilled in the art, as will be the variety of uses to maybe applied.-

, n ombinati in n a e t, a ubs ant a-lly straight base member, a tube-having resilient walls of suflicient stiffness to maintain its shape and yieldingly resist collapse signed our names in the presence of the twb extending aglong tohe tfp of the lloase member, subscribed witnesses. and upstan in rac ets in te escopic re ation with the eiids of the tube and releasable therefrom by bending the tube, theair pressure in the tube being substantially as that Witnesses: outside the tube. HARRY T. SMITH,

In testimony whereof We have hereunto W. I. F INCH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

